| Stazioni: 43
|
Umidità |
| Adak (5 m, Alaska) |
85 % |
| Aeroporto Internazionale di Calgary (1084 m, Alberta) |
95 % |
| Alice Intl. Airport (52 m, Texas) |
90 % |
| Aransas (8 m, Texas) |
90 % |
| Aspen/Pitkin (2384 m, Colorado) |
95 % |
| Baton Rouge Metropolitan Airport (21 m, Louisiana) |
85 % |
| Bob Sikes Airport (65 m, Florida) |
100 % |
| Davis Field (186 m, Oklahoma) |
80 % |
| Denton Enterprise Airport (197 m, Texas) |
75 % |
| Dubois Aeroporto (2224 m, Wyoming) |
65 % |
| Ely Municipal Airport (443 m, Minnesota) |
55 % |
| Evanston Aeroporto (2177 m, Wyoming) |
80 % |
| Frederick Municipal Airport (92 m, Maryland) |
45 % |
| Hall Beach (8 m, California) |
90 % |
| Hall Beach Airport (7 m, Nunavut) |
90 % |
| Hanchey Army Heliport (97 m, Alabama) |
75 % |
| Havre-Saint-Pierre (37 m, Québec) |
95 % |
| Havre-Saint-Pierre (34 m, Québec) |
95 % |
| Hobart Regional Airport (478 m, Oklahoma) |
90 % |
| Koyuk Aeroporto (40 m, Alaska) |
95 % |
| Lamoni (342 m, Iowa) |
50 % |
| Litchfield Aeroporto (347 m, Minnesota) |
30 % |
| Mobridge Aeroporto (508 m, Dakota del Sud) |
65 % |
| Moosonee (9 m, Ontario) |
85 % |
| Moosonee Aeroporto (9 m, Québec) |
85 % |
| New Stuyahok Aeroporto (92 m, Alaska) |
75 % |
| Nikolai Airport (126 m, Alaska) |
50 % |
| Nipawin Airport (374 m, Saskatchewan) |
60 % |
| Nome Aeroporto (6 m, Alaska) |
95 % |
| Point Lay LRRS Airport (6 m, Alaska) |
95 % |
| Port Hawkesbury Aeroporto (114 m, Nuova Scozia) |
95 % |
| Ramona Aeroporto (424 m, California) |
95 % |
| Rawlins Municipal Airport (2077 m, Wyoming) |
80 % |
| Rogers Executive Airport (415 m, Arkansas) |
85 % |
| Smithers (517 m, Columbia Britannica) |
65 % |
| Springbank (1201 m, Alberta) |
95 % |
| St. Mary's Airport (95 m, Alaska) |
100 % |
| Stony Rapids Airport (248 m, Saskatchewan) |
95 % |
| Texarkana Regional Airport (119 m, Arkansas) |
75 % |
| The Pas Airport (270 m, Manitoba) |
65 % |
| Victoria Regional Airport (36 m, Texas) |
95 % |
| Waco Regional Airport (155 m, Texas) |
90 % |
| Yampa Valley Airport (2012 m, Colorado) |
95 % |
nord - sud